CN2647737Y

CN2647737Y - Bicycle pedal rod folding structure

Info

Publication number: CN2647737Y
Application number: CN 03208991
Authority: CN
Inventors: 王平典
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-09-04
Filing date: 2003-09-04
Publication date: 2004-10-13
Anticipated expiration: 2013-09-04

Abstract

A folding structure of bicycle pedal lever includes a main chain-wheel arranged on the bicycle, a spigot shaft arranged on the central part of the main chain-wheel, a pedal lever pedestal provided with a plurality of bracing pawls. A fixing element is arranged at the ends of the bracing pawls. On the main chain-wheel, Pilot holes are arranged at the position corresponding to the bracing pawls. The bracing pawls of the pedal lever pedestal are connected with the pilot holes on the main chain-wheel by fixing elements. The pedal lever pedestal and the spigot shaft are fixed and connected with each other. The upper end of the pedal lever pedestal is pin jointed with the upper end of the pedal lever by pin joint element. A clamping mechanism is arranged between the other end of the pedal lever pedestal and the end touched with the pedal lever. By virtue of the clamping mechanism, the pedal lever can be folded and unfolded easily, the bulk gets reduced, and the cost for packing and transporting get lowered efficiently.

Description

Prop stand for bicycle treadle folding

＜one〉technical field:

The utility model system is about a kind of prop stand for bicycle treadle folding, refer to especially a kind of have can save the foot-driven lever folding that folds the volume function, can save the cost of vanning transportation, and the user is more convenient on carrying, belong to bicycle accessories.

＜two〉background technology:

" prop stand for bicycle treadle " provides " stretcher " to engage the body of rod position of usefulness, and present common stretcher position can fold, and to cooperate the folding operation of whole self-propelled car, dwindles the volume after folding as far as possible; After yet how present bicycle folds or fold, often feel still that as if the foot-driven lever position rather outstanding, to the influence to some extent of dwindling of volume.Trace it to its cause about at present known bicycle pedals leverage each one and oppositely stretch out and be and fixedly install, so although car body or stretcher all fold or fold, but two foot-driven levers still must oppositely exist, and can't allow it stretch out in the same way, if can make wherein oppositely folding of foot-driven lever, then can make two foot-driven levers become the state that stretches out in the same way, so can dwindle the volume behind the bicycle foldable integral, to make things convenient for loading packing and transportation.

The purpose of this utility model system provides a kind of prop stand for bicycle treadle folding, and having volume and whole the foot-driven lever that can save after folding can fold fully, and can save the vanning traffic cost, has the advantage that is convenient for carrying.

＜three〉summary of the invention:

A kind of prop stand for bicycle treadle of the utility model folding, it consists predominantly of: a main chain wheel disc is installed on the bicycle; One center shaft is installed in the centre of main chain wheel disc; One foot-operated pole socket, cording has several support claws, the end of these support claws is provided with affixed element, the main chain wheel disc of corresponding these support claw relative positions is provided with assembly opening, see through affixed element and will ride the support claw of pole socket and affixed combination of assembly opening of main chain wheel disc card, and affixed combination the between foot-operated pole socket and the center shaft, the upper end of foot-operated pole socket articulates with articulated part jointly with the upper end of a foot-driven lever and is provided with, in addition between end and end face that foot-driven lever contact jointly combination the one clip clip mechanism of locating mutually is set; Be provided with by this, make foot-driven lever have the functions of use that makes things convenient for of collapsible and expansion, make volume-diminished, can effectively reduce costs such as user's loading packing and transportation.

Wherein, this clip mechanism divides into elasticity clip unit and the clip alcove of accepting this elasticity clip unit, this clip alcove is arranged on the bottom of foot-operated pole socket, and elasticity clip unit is arranged on the foot-driven lever, the foot-driven lever of accepting elasticity clip unit more is provided with a room for the unit setting of elasticity clip, be provided with a spring in this room, and be provided with one and be subjected to the clip projection of this spring towards the clip alcove direction pushing tow displacement of foot-operated pole socket, the pairing room wall of this clip projection has one section side direction fluting, this side direction fluting has an outstanding retaining wall with spring thrust end cell wall in the same way, and be the joint portion that perpendicular clip projection is provided with inner concavity with this side direction fluting, pass a slide block with binding member collocation and be resisted against outside the side direction fluting, and stretch in the joint portion in conjunction with the location.

Wherein, this elasticity clip unit is arranged on the foot-operated pole socket, and be provided with in addition on the foot-driven lever one can with the truck alcove of this clip location, elasticity clip unit.

A kind of prop stand for bicycle treadle of the utility model folding, its advantage is: scientific structure, assembling can fixedly positioning after the expansion easily, folds easy for operation.Having volume and whole the foot-driven lever that can save after folding can fold fully, and can save the vanning traffic cost, and the occupation of land space is little, is easy to carry, and has application value.

＜four〉description of drawings:

Fig. 1 the utility model first embodiment lateral plan.

Fig. 2 the utility model first embodiment side cutaway view.

Fig. 3 the utility model first embodiment folding action diagram ().

Fig. 4 the utility model first embodiment folding action diagram (two).

The integral structure scheme drawing of Fig. 5 the utility model first embodiment.

Fig. 6 the utility model second embodiment folding action diagram ().

Fig. 7 the utility model second embodiment folding action diagram (two).

Number in the figure is as follows:

1 main chain wheel disc, 2 center shafts, 3 foot-operated pole sockets

30 support claws, 31 affixed element 10 assembly openings

32 spiral shell spares, 33 articulated parts, 34 foot-driven levers

4 clip mechanisms, 40 clip unit, 41,42 clip alcoves

35 rooms, 400 springs, 401 clip projections

350 flutings, 351 retaining walls, 4010 joint portions

402 binding members, 403 slide blocks, 4011 dip plane

＜five〉specific embodiment:

See also shown in Fig. 1,2, a kind of prop stand for bicycle treadle of the utility model folding, it is formed member and has:

One main chain wheel disc 1, system is installed on the bicycle, be subjected to strength that pin tramples and driven in rotation, when actual installation is used, this main chain wheel disc 1 is to be equipped with chain and drive installation is rotated at the auxiliary chain wheel dish of bicycle tail end, makes the wheel of whole bicycle can be subjected to the strength that pin tramples and has the rolling walking function.

One center shaft 2 (please cooperate consult shown in Figure 2) is the centre that is installed in main chain wheel disc 1.

One foot-operated pole socket 3, cording has the support claw 30 of multi-claw type (four paws), affixed element 31 (as spiral shell spare group or riveting part group etc.) can be installed in the end of these support claws 30, the main chain wheel disc 1 of corresponding these support claw 30 relative positions is provided with assembly opening 10 (as shown in Figure 2), make the setting that sees through affixed element 31, can make foot-operated pole socket 3 and main chain wheel disc 1 the two tool consubstantiality interlock effect with riding the support claw 30 of pole socket 3 and the assembly opening 10 affixed settings of main chain wheel disc 1 card.And should foot-operated pole socket 3 with center shaft 2 between be with spiral shell spare 32 affixed combinations, and the upper end of the upper end of foot-operated pole socket 3 and foot-driven lever 34 articulates with articulated part 33 jointly and is provided with, when making foot-driven lever 34 be trampled start because of stretcher, can drive main chain wheel disc 1 synchronously and rotate, and then make bicycle walking; Be that common combination is provided with a clip clip mechanism 4 of locating mutually between lower end that should foot-operated pole socket 3 and the end face that foot-driven lever 34 contacts, this clip mechanism 4 divides into elasticity clip unit 40 and the clip alcove 41 of accepting this elasticity clip unit 40, wherein, clip alcove 41 is the bottom that can be set directly at foot-operated pole socket 3, and elasticity clip unit 40 then is arranged on (being the utility model first embodiment) on the foot-driven lever 34; Maybe can reverse is arranged on this elasticity clip unit 40 on the foot-operated pole socket 3, and on foot-driven lever 34, be provided with in addition one can with the clip alcove 42 (being the utility model second embodiment, shown in Fig. 6,7) of this 40 clips location, elasticity clip unit.Now its different structure aspect is described in detail as follows:

One, with the utility model first embodiment (please cooperate and consult shown in Fig. 2,3), the clip alcove 41 of clip mechanism 4 is the bottom that is arranged on foot-operated pole socket 3, and elasticity clip unit 40 is to be arranged on the foot-driven lever 34; Wherein, the foot-driven lever 34 of accepting elasticity clip unit 40 is to be provided with a room 35 to be provided with for elasticity clip unit 40, be provided with a spring 400 in this room 35, and a perseverance is set is subjected to the clip projection 401 of this spring 400 towards the clip alcove 41 direction pushing tow displacements of foot-operated pole socket 3, these clip projection 401 pairing room 35 walls have one section side direction fluting 350, this side direction fluting 350 is established an outstanding retaining wall 351 with spring 400 thrusts end cell wall in the same way, and be the joint portion 4010 that perpendicular clip projection 401 is provided with inner concavity with this side direction fluting 350, passing a slide block 403 with a binding member 402 collocation is resisted against outside the side direction fluting 350, and binding member 402 ends stretch to the 4010 interior combination location, joint portion of clip projection 401, wherein, this slide block 403 orders about because of the strength that is subjected to spring 400 pushing tow clip projections 401, consequently, in the time of in clip projection 401 snaps in the clip alcove 41 of riding pole socket 3 (as shown in Figure 2), the also permanent retaining wall 351 that is resisted against outside the side direction fluting 350 of its slide block 403, so safety and firmness is high.When desire folds foot-driven lever 34, then only need toward lower slider (shown in the A direction among Fig. 3) slide block 403, can make clip projection 401 move down synchronously, when the displacement of this clip projection 401 has broken away from the clip alcove 41 of foot-operated pole socket 3, whole foot-driven lever 34 up can be folded (shown in Fig. 4,5), therefore, make bicycle when the vanning transportation, its volume is dwindled, and to improve the transportation volume of product, can reduce production costs.When if the foot-driven lever 34 of desiring will originally to fold again launches to use, only need to get final product with reciprocal operation again, in order to make clip projection 401 in the return process, have automatic clip positioning function, clip projection 401 can be provided with to be to push away corresponding to the end of clip alcove 41 and pull out dip plane 4011 (as Fig. 2 to shown in Figure 5), so, when clip projection 401 is run into clip alcove 41, can utilize its dip plane 4011 to contact with clip alcove 41 outer walls is synchronous compression spring 400 (as shown in Figure 3), and then initiatively clip projection 401 is embedded location in the clip alcove 41.

Two, (please cooperate and consult Fig. 6 as for the utility model second embodiment, shown in 7), main difference between itself and previous embodiment only is this elasticity clip unit 40 to be arranged on the foot-operated pole socket 3, and on foot-driven lever 34, be provided with in addition one can with the clip alcove 42 of this elasticity clip unit 40 clips location, its part configuration is identical with previous embodiment, under normal condition, its clip alcove 42 is to locate with clip projection 401 clips, amounting in the operation, also equally by the mode (shown in Fig. 6 arrow B direction) that promotes slide block 403, make clip projection 401 be broken away from and the clip of 42 of clip alcoves, so foot-driven lever 34 can be folded the location; If desire again foot-driven lever 34 to be reverted to and the clip positioning states of 3 of foot-operated pole sockets, then whole foot-driven lever 34 down pulled, can be by fastening between its clip alcove 42 and clip projection 401 ends, reach and initiatively revert to clip positioning states shown in Figure 6.

As shown in the above description, structure design of the present utility model, really can improve the bulky disappearance of above-mentioned standard bicycle foot-driven lever, the utility model meets in entire mechanism design and folds, launches to be convenient to use advantage, and, fold the back fully outside without any outstanding mechanism's projection, make volume-diminished, can effectively reduce costs such as packing, transportation, and have the splendid result of use of firm safety.

Claims

1, a kind of prop stand for bicycle treadle folding, it is characterized in that: it consists predominantly of: a main chain wheel disc is installed on the bicycle; One center shaft is installed in the centre of main chain wheel disc; One foot-operated pole socket, cording has several support claws, the end of these support claws is provided with affixed element, the main chain wheel disc of corresponding these support claw relative positions is provided with assembly opening, see through affixed element and will ride the support claw of pole socket and affixed combination of assembly opening of main chain wheel disc card, and affixed combination the between foot-operated pole socket and the center shaft, the upper end of foot-operated pole socket articulates with articulated part jointly with the upper end of a foot-driven lever and is provided with, in addition between end and end face that foot-driven lever contact jointly combination the one clip clip mechanism of locating mutually is set.

2, a kind of prop stand for bicycle treadle folding according to claim 1, it is characterized in that: this clip mechanism divides into elasticity clip unit and the clip alcove of accepting this elasticity clip unit, this clip alcove is arranged on the bottom of foot-operated pole socket, and elasticity clip unit is arranged on the foot-driven lever, the foot-driven lever of accepting elasticity clip unit more is provided with a room for the unit setting of elasticity clip, be provided with a spring in this room, and be provided with one and be subjected to the clip projection of this spring towards the clip alcove direction pushing tow displacement of foot-operated pole socket, the pairing room wall of this clip projection has one section side direction fluting, this side direction fluting has an outstanding retaining wall with spring thrust end cell wall in the same way, and be the joint portion that perpendicular clip projection is provided with inner concavity with this side direction fluting, pass a slide block with binding member collocation and be resisted against outside the side direction fluting, and stretch in the joint portion in conjunction with the location.

3, a kind of prop stand for bicycle treadle folding according to claim 2 is characterized in that: this elasticity clip unit is arranged on the foot-operated pole socket, and be provided with in addition on the foot-driven lever one can with the truck alcove of this clip location, elasticity clip unit.